Cutting and unwinding device
By introducing unwinding detection mechanism and sensor control in the cutting machine, the problem of unstable unwinding of heavy rolls in the cutting machine is solved, and accurate control and cutting of the rolls are achieved.
Patent Information
- Application Number
- CN202421784771.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-07-26
AI Technical Summary
When existing cutting machines process large and heavy rolls, the force provided by the rollers is insufficient, resulting in the inability to accurately cut the rolls.
The unwinding detection mechanism is used to control the start and stop of the unwinding motor through the detection sensor, providing additional power to ensure stable unwinding of the coil. It includes an unwinding detection mechanism, a detection bracket, a detection sensor and a mobile detection rod to achieve precise control of the coil.
It achieves accurate unwinding of heavy coils, avoids the problems of coil position deviation and inaccurate cutting, and improves cutting accuracy.
Smart Images
Figure CN223328655U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of coil unwinding, and in particular relates to a cutting and unwinding device. Background Art
[0002] The cutting machine used at the production site has the coil directly threaded onto an unpowered shaft. When the coil is large and heavy, it is driven only by the rotation of the cutting machine roller. The force generated by the roller is insufficient to drive the coil behind it, resulting in the coil not being accurately cut to the required length. Utility Model Content
[0003] The utility model provides a cutting and unwinding device, which can control the start and stop of the unwinding motor according to the unwinding state of the coil material, provide power for unwinding the coil material, and does not rely solely on the cutting machine roller to drive, thereby solving the shortcomings described in the above-mentioned prior art.
[0004] The technical solution adopted by this utility model is:
[0005] A cutting and unwinding device includes a support base, on which are mounted an unwinding mechanism and an unwinding detection mechanism. The unwinding detection mechanism includes a detection bracket, a detection sensor, and a movable detection rod. The detection bracket is mounted on the support base, and the movable detection rod is mounted on the detection bracket and moves up and down relative to the detection bracket. The gap between the movable detection rod and the bottom end of the detection bracket serves as a passage for the coiled material. The detection sensor is mounted on the detection bracket and controls the start and stop of the unwinding mechanism's unwinding motor. The detection sensor detects the position of the movable detection rod and controls the start and stop of the unwinding motor based on the position of the movable detection rod, thereby achieving powered unwinding of the coiled material. Even heavy and large coils can be unwound without difficulty.
[0006] As a preferred embodiment of the present invention, the unwinding mechanism comprises an unwinding shaft, an unwinding bracket, and an unwinding motor. The unwinding bracket is mounted on a support base, and the unwinding shaft is mounted on the unwinding bracket via a bearing and rotates relative to the unwinding bracket. The unwinding motor drives the unwinding shaft. The unwinding shaft is provided with a coil mounting area, and a movable detection rod is located in front of the unwinding shaft. The entire coil is mounted in the coil mounting area of the unwinding shaft and is limited on both sides to prevent position shifting during unwinding. The unwinding motor provides unwinding power and is activated only when the cutting machine needs to feed the material.
[0007] As a preferred embodiment of the present invention, the unwinding motor is fixed to the support base via a motor mount. The output shaft of the unwinding motor is mounted with a driving wheel, which is connected to a driven wheel via a conveyor. The driven wheel is mounted on the unwinding shaft and drives the unwinding shaft to rotate. When the conveyor uses a belt, both the driving wheel and the driven wheel are pulleys; when the conveyor uses a chain, both the driving wheel and the driven wheel are sprockets.
[0008] As a preferred embodiment of the present invention, the unwinding shaft is provided with a limit block at the coil mounting area. The limit block is passed through the unwinding shaft and locked to the unwinding shaft via a pin. The limit block is used to limit the coil reel and prevent it from shifting during the unwinding rotation process.
[0009] As a preferred solution of the present invention, the detection bracket is mounted in front of the support base via an extension seat. The coil passes under the movable detection rod and contacts the lower end surface of the movable detection rod for conveyance. When the cutting machine is working, the coil is tightened and the movable detection rod is lifted.
[0010] As a preferred embodiment of the present invention, the movable detection rod comprises a web contact rod and a detection track rod. Each end of the web contact rod is connected to a detection track rod, and each detection track rod is upwardly positioned through a movable hole in the detection bracket. The web track rod serves as a limit track for the web contact rod's upward and downward movement, ensuring that it always moves in a straight line. When the cutting machine does not need to feed material, the web collapses under the weight of the movable detection rod and falls to its original position until it is lifted again.
[0011] As a preferred solution of the present invention, a movable half-hole I is respectively provided at the two side ends of the detection bracket, each movable half-hole I corresponds to a fixed block, the fixed block is detachably installed on the detection bracket, and the fixed block is provided with a movable half-hole II, and the movable half-hole I and the movable half-hole II constitute a movable hole.
[0012] The utility model provides power to the unwinding shaft through the unwinding motor, and the start and stop of the unwinding motor is controlled by detecting the situation that the moving detection rod is lifted by the coiled material by the detection sensor. When the detection sensor detects that the moving detection rod is lifted, the unwinding motor is started, and when the moving detection rod returns to its original position, the unwinding motor is stopped. The reciprocating action realizes the conveyance of the coiled material, and the moving detection rod is relatively light, so the cutting machine does not need a lot of force to drive the coiled material to lift it, which can ensure that the coiled material is not pulled hard and causes inaccurate cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0014] Figure 1 It is a three-dimensional diagram of the present utility model.
[0015] Figure 2 It is the main view of the utility model. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0017] Example:
[0018] A cutting and unwinding device, such as Figure 1 and 2 As shown, it includes a support base 1, on which an unwinding mechanism 2 and an unwinding detection mechanism 3 are installed.
[0019] The unwinding mechanism 2 includes an unwinding shaft 21, an unwinding bracket 22 and an unwinding motor 23; the unwinding bracket 22 is installed on the support base 1, and the unwinding shaft 21 is installed on the unwinding bracket 22 through a bearing and rotates relative to the unwinding bracket 22; the unwinding motor 23 is fixed to the support base 1 through a motor seat, and the output shaft of the unwinding motor 23 is equipped with a driving wheel 231, which is connected to the driven wheel 232 through a conveying member 233, and the driven wheel 232 is installed on the unwinding shaft 21 and drives the unwinding shaft to rotate.
[0020] When the conveyor uses a belt, the driving wheel and the driven wheel are both pulleys; when the conveyor uses a chain, the driving wheel and the driven wheel are both sprockets.
[0021] The unwinding shaft 21 is provided with a coil mounting area, where the coil reel is mounted. A limit block 211 is also provided in the coil mounting area. The limit block 211 is inserted through the unwinding shaft and locked to the unwinding shaft via a pin. The limit block is used to limit the coil reel and prevent it from shifting during the unwinding rotation process.
[0022] The unwinding detection mechanism 3 includes a detection bracket 31, a detection sensor 32 and a movable detection rod 33. The detection bracket 31 is installed in front of the support base 1 through an extension seat, and the movable detection rod 33 is installed on the detection bracket 31 and moves up and down relative to the detection bracket 31.
[0023] Specifically, the mobile detection rod 33 includes a coil contact rod 331 and a detection track rod 332. The two ends of the coil contact rod 331 are respectively connected to a detection track rod 332, and each detection track rod 332 is arranged to pass upward through the movable hole of the detection bracket 31. The coil track rod serves as a limit track when the coil contact rod moves up and down, so that it always moves in a straight line when moving up and down, and when the cutting machine does not need to feed the material, the coil will collapse under the weight of the mobile detection rod and fall to its original position until it is lifted next time. The gap between the coil contact rod 331 and the bottom end of the detection bracket 31 serves as a coil passage; the coil is conveyed by passing under the mobile detection rod and contacting the lower end face of the mobile detection rod.
[0024] In this embodiment, the movable hole used is a spliced structure, specifically, a movable half hole I is provided at the two side ends of the detection bracket 31, each movable half hole I corresponds to a fixed block 34, the fixed block is detachably installed on the detection bracket, and the fixed block 34 is provided with a movable half hole II, and the movable half hole I and the movable half hole II constitute the movable hole.
[0025] The detection sensor 32 is mounted on the detection bracket 31 and the detection end corresponds to the end of the coil contact rod. The detection sensor 32 controls the start and stop of the unwinding motor of the unwinding mechanism 2. The detection sensor 32 can use a proximity switch.
[0026] The entire roll of coil 5 is installed in the coil installation area of the unwinding shaft and limited on both sides to prevent position deviation during unwinding, and passes through the lower end of the coil contact rod to support the coil contact rod and then enter the cutting machine. When the cutting machine is working, the roller of the cutting machine drives the coil to lift the coil contact rod and leave the detection position of the detection sensor. After the coil contact rod leaves, the detection sensor detects the departure signal, and the unwinding motor is powered on and started to drive the unwinding shaft to rotate to realize the unwinding of the coil. When the coil contact rod falls back to its original position under its own weight, the detection sensor detects the in-place model, the unwinding motor is powered off and stopped, and the unwinding shaft stops rotating.
[0027] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A cutting and unwinding device, characterized in that: The invention comprises a support base (1), an unwinding mechanism (2) and an unwinding detection mechanism (3) are mounted on the support base (1), the unwinding detection mechanism (3) comprises a detection bracket (31), a detection sensor (32) and a movable detection rod (33), the detection bracket (31) is mounted on the support base (1), the movable detection rod (33) is mounted on the detection bracket (31) and moves up and down relative to the detection bracket (31); a gap between the movable detection rod (33) and the bottom end of the detection bracket (31) serves as a coil passage; the detection sensor (32) is mounted on the detection bracket (31), and the detection sensor (32) controls the start and stop of the unwinding motor of the unwinding mechanism (2).
2. The cutting and unwinding device according to claim 1, characterized in that: The unwinding mechanism (2) comprises an unwinding shaft (21), an unwinding bracket (22) and an unwinding motor (23); the unwinding bracket (22) is mounted on the support base (1); the unwinding shaft (21) is mounted on the unwinding bracket (22) via a bearing and rotates relative to the unwinding bracket (22); the unwinding motor (23) drives the unwinding shaft (21) to rotate; the unwinding shaft (21) is provided with a coil mounting area; and the movable detection rod (33) is located in front of the unwinding shaft (21).
3. The cutting and unwinding device according to claim 1 or 2, characterized in that: The unwinding motor (23) is fixed to the support base (1) via a motor seat. The output shaft of the unwinding motor (23) is equipped with a driving wheel (231). The driving wheel (231) is connected to the driven wheel (232) via a conveying member (233). The driven wheel (232) is installed on the unwinding shaft (21) and drives the unwinding shaft to rotate.
4. The cutting and unwinding device according to claim 3, characterized in that: The unwinding shaft (21) is provided with a limit block (211) at the coil installation area, and the limit block (211) is passed through the unwinding shaft and locked on the unwinding shaft via a pin.
5. The cutting and unwinding device according to claim 3, characterized in that: The detection bracket (31) is installed in front of the support base (1) via an extension seat.
6. The cutting and unwinding device according to claim 3, characterized in that: The movable detection rod (33) comprises a coil contact rod (331) and a detection track rod (332). Both ends of the coil contact rod (331) are respectively connected to a detection track rod (332). Each detection track rod (332) is arranged to pass upward through a movable hole of the detection bracket (31).
7. The cutting and unwinding device according to claim 6, characterized in that: A movable half hole I is provided at each side end of the detection bracket (31), each movable half hole I corresponds to a fixed block (34), the fixed block is detachably mounted on the detection bracket, and the fixed block (34) is provided with a movable half hole II, and the movable half hole I and the movable half hole II constitute a movable hole.